摘要：The demographic conceptions or the theories about population constitute themselves in a coherent explanatory system of the human population’s evolution by means of dependencies, interdependencies, associations and correlations of the demography with economy, biology, sociological history and other various social sciences, the role of the resources, of the scientifi c progress and of other cultural factors being very well mentioned in comparison with demographic dynamic. From Thomas Robert Malthus (1766-1834, English priest and economist) to his contemporary alter- ego, famous authors of the theory of “the demographic explosion,” Robert Cook and Paul Ehrlich, from the trend of human ecology of the Chicago School, with its famous representatives Robert E. Park, Roderick McKenzie and Ernest W. Burgess to Philip Longman or S. P. Kapiţa, the long road of the demographic theory, mainly of the theories about the human population, remains an extremely exciting and attractive, aggressive and even speculative sometimes, but interrogatively existential, and, often, of an inadequate economic opportunism one.
关键词：population and the means of subsistence; Malthusian thinking;demographic; explosion; demographic transition; demographic revolution; stationary;population; optimal population; demographic implosion.
